Head on over to the book
page at Packt, read through the product description of this book and drop
us a line via the comments
section stating what interests you the most about this book and
about JBoss ESB.
It’s that simple.

Although I have some ESB layers, I'm actually quite interested in the larger 'EAI' approach of enterprise application integration of services, particularly between various notifications and retrieval of datasets then putting those datasets *either* through an ESB or using an EAI to hook to an ETL for file/batch data processing. (And yes, I would be interested in the book for both ESB as well as EAI).